Refrigerant compositions

Details Refrigerant compositions Refrigerant compositions

C - Chemistry, Metallurgy

09

K

C09K 5/04 (2006.01)

Patent

CA 2193636

A non-azeotropic refrigerant composition is described. The composition comprises (A) carbon dioxide, (B) at least one hydrofluorocarbon selected from the group consisting of 1,1,1,2-tetrafluoroethane and 1,1,2,2- tetrafluoroethane, and (C) at least one hydrofluorocarbon selected from the group consisting of difluoromethane, 1,1,1-trifluoroethane and pentafluoroethane.

L'invention concerne une composition réfrigérante non azéotrope comprenant (A) du dioxyde de carbone, (B) au moins un hydrofluorocarbone choisi dans le groupe comprenant du 1,1,1-trifluoroéthane et du 1,1,2,2-tétrafluoroéthane et (C) au moins un hydrofluorocarbone choisi dans le groupe comprenant du difluorométhane, du 1,1,1,-trifluoroéthane et du pentafluoroéthane.

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